Positioning reference signal transmission method and apparatus, and network-side device and storage medium

Abstract

The present application belongs to the field of communications. Disclosed are a positioning reference signal transmission method and apparatus, and a network-side device and a storage medium. The positioning reference signal transmission method in the embodiments of the present application comprises: a terminal aggregating and transmitting positioning reference signals on N cells, wherein N is an integer greater than 1, the N cells at least comprise a secondary cell, and the secondary cell meets at least one of the following: configuration information of the secondary cell comprising configuration information of the positioning reference signal, and at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) being not configured; the secondary cell only comprising the transmission of the positioning reference signal; and the secondary cell being configured to be a secondary cell used for transmitting the positioning reference signal.

Description

Positioning reference signal transmission method, device, network side equipment and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 11, 2023, with application number 202311018535.7 and invention name “Positioning Reference Signal Transmission Method, Apparatus, Network Side Equipment and Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of communication technology, and specifically relates to a positioning reference signal transmission method, apparatus, network-side equipment, and storage medium. Background Art

[0003] Currently, fifth-generation (5G) mobile communication systems use a Sounding Reference Signal (SRS) for uplink positioning and a Positioning Reference Signal (PRS) for downlink positioning. The network or the terminal can determine the terminal's location by transmitting these signals.

[0004] Taking uplink SRS signal transmission as an example, the maximum supported bandwidth of a carrier in 5G's low- to mid-frequency band (FR1) is 100 MHz, and the maximum supported bandwidth in the millimeter wave band (FR2) is 400 MHz. However, SRS can only be transmitted on the active bandwidth part (BWP), where the bandwidth of this BWP is smaller than the carrier bandwidth, such as 20 MHz or 40 MHz. For example, as shown in Figure 1, a carrier can have a maximum of two BWPs (i.e., BWP0 and BWP1), but only one is active. This shows that the signal bandwidth of SRS is very small when transmitted on a single carrier.

[0005] It can be seen that in the prior art, when positioning is performed based on a communication reference signal, sufficient positioning accuracy cannot be obtained because the bandwidth of a single carrier is too small.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a positioning reference signal transmission method, apparatus, network-side equipment, and storage medium, which can solve the problem in the prior art of low positioning accuracy due to the small single-carrier bandwidth when performing SRS-based positioning.

[0008] In a first aspect, a positioning reference signal transmission method is provided, the method comprising:

[0009] The terminal aggregates and transmits positioning reference signals on N cells;

[0010] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0011] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0012] The secondary cell only includes transmission of the positioning reference signal;

[0013] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0014] In a second aspect, a positioning reference signal transmission method is provided, the method comprising:

[0015] The network-side device determines N cells for aggregated transmission of positioning reference signals;

[0016] The network side device configures the N cells to the terminal;

[0017] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0018] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0019] The secondary cell only includes transmission of the positioning reference signal;

[0020] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0021] In a third aspect, a positioning reference signal transmission device is provided, which is applied to a terminal. The device includes:

[0022] A transmission module, configured to aggregate and transmit positioning reference signals on N cells;

[0023] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0024] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0025] The secondary cell only includes transmission of the positioning reference signal;

[0026] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0027] In a fourth aspect, a positioning reference signal transmission device is provided, which is applied to a network-side device, and the device includes:

[0028] A first determining module is configured to determine N cells for aggregated transmission of positioning reference signals;

[0029] A configuration module, configured to configure the N cells to the terminal;

[0030] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0031] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0032] The secondary cell only includes transmission of the positioning reference signal;

[0033] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0034] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0035] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to aggregate and transmit positioning reference signals on N cells;

[0036] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0037] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0038] The secondary cell only includes transmission of the positioning reference signal;

[0039] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0040] In the seventh aspect, a network side device is provided, which terminal includes a processor and a memory, the memory storing programs or instructions that can be run on the processor, and the program or instructions, when executed by the processor, implement the steps of the method described in the second aspect.

[0041] In an eighth aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to determine N cells for aggregate transmission of positioning reference signals;

[0042] The communication interface is used to configure the N cells to the terminal;

[0043] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0044] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0045] The secondary cell only includes transmission of the positioning reference signal;

[0046] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0047] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0048] In the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect or the second aspect.

[0049] In the eleventh aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0050] In this embodiment of the present application, the terminal is capable of transmitting positioning reference signals in an aggregated manner on N cells, where N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following conditions:

[0051] The secondary cell includes configuration information of a positioning reference signal, and is not configured with at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH);

[0052] The secondary cell only includes the transmission of positioning reference signals;

[0053] The secondary cell is configured as a secondary cell for transmitting a positioning reference signal.

[0054] It can be seen that in the embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has relevant configurations of the positioning reference signal. In this way, the positioning reference signal can be aggregated and transmitted on the N cells, thereby increasing the transmission bandwidth of the positioning reference signal and further improving the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is a schematic diagram of a BWP on a carrier in the related art

[0056] FIG2 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0057] FIG3 is a flowchart of a positioning reference signal transmission method according to an embodiment of the present application;

[0058] FIG4 is a schematic diagram of a target MAC CE according to an embodiment of the present application;

[0059] FIG5 is a second schematic diagram of the target MAC CE in an embodiment of the present application;

[0060] FIG6 is a schematic diagram of time domain information of a positioning reference signal in an embodiment of the present application;

[0061] FIG7 is a flowchart of another positioning reference signal transmission method according to an embodiment of the present application;

[0062] FIG8 is a structural block diagram of a positioning reference signal transmission device according to an embodiment of the present application;

[0063] FIG9 is a structural block diagram of another positioning reference signal transmission device in an embodiment of the present application;

[0064] FIG10 is a structural block diagram of a communication device in an embodiment of the present application;

[0065] FIG11 is a block diagram of a terminal in an embodiment of the present application;

[0066] FIG12 is a structural block diagram of a network-side device in an embodiment of the present application;

[0067] FIG13 is a structural block diagram of another network-side device in an embodiment of the present application. DETAILED DESCRIPTION

[0068] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0069] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0070] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0071] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0072] FIG2 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), a teller machine, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0073] The network-side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS), or a wireless fidelity (WiFi) node. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0074] The core network device may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application server discovery function (EASDF), unified data management (UDM), unified data storage (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BNSF), network access function (UE ... Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.But not limited to at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network equipment in the NR system is introduced as an example, and the specific type of the core network equipment is not limited.

[0075] The positioning reference signal transmission method provided in the embodiments of the present application is described in detail below with reference to some embodiments and application scenarios with reference to the accompanying drawings.

[0076] In a first aspect, an embodiment of the present application provides a positioning reference signal transmission method, as shown in FIG3 , the method comprising the following steps:

[0077] Step 301: The terminal aggregates and transmits positioning reference signals on N cells.

[0078] Aggregated transmission can be understood as carrier aggregation. Generally speaking, carrier aggregation means that a terminal can simultaneously send and receive data on two or more carriers, rather than on the active BWP of only one carrier as in a non-aggregated scenario.

[0079] That is, in an embodiment of the present application, aggregate transmission refers to transmitting positioning reference signals on N cells at the same time, thereby increasing the transmission bandwidth of the positioning reference signal. It should be noted that the transmission positioning reference signal here can be sending an uplink positioning reference signal (i.e., SRS) or receiving a downlink positioning reference signal (i.e., PRS). Among them, in the case of receiving a downlink reference signal, the N cells can also be understood as N positioning frequency layers. Optionally, the configuration information of the positioning frequency layer includes the identification information of the cell, that is, the positioning frequency layer is associated with the cell. Further, the secondary cell is configured as a secondary cell for transmitting the positioning reference signal, which can be understood as that the configuration information of the positioning frequency layer includes the configuration information of the downlink positioning reference signal.

[0080] In one embodiment, the N cells belong to a frequency band, that is, the carrier aggregation is carrier aggregation of multiple carriers within the band. Typically, a band or a TAG has only one primary cell, so the N cells may include N-1 secondary cells.

[0081] In one embodiment, N is an integer greater than 1, and the N cells include at least a secondary cell, that is, the N cells may include a primary cell and one or more secondary cells, or the N cells may include one or more secondary cells.

[0082] The one or more secondary cells meet at least one of the following conditions A-1 to A-3:

[0083] Item A-1: ​​The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) is not configured;

[0084] Item A-2: The secondary cell only includes transmission of the positioning reference signal;

[0085] Item A-3: The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0086] It can be seen from A-1 to A-3 that the N cells may include at least one of a secondary cell used only for transmitting a positioning reference signal and a secondary cell used for transmitting a positioning reference signal and other signals except the positioning reference signal.

[0087] In a communication system, the number of secondary cells for uplink aggregated transmission data is often relatively small. In this case, the secondary cells used only for transmitting the positioning reference signal can be different from the conventionally activated secondary cells, thereby achieving the purpose of saving power for the terminal and transmitting a large bandwidth (i.e., aggregated) positioning reference signal.

[0088] As can be seen, in this embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has relevant configurations for positioning reference signals. In this way, positioning reference signals can be aggregated and transmitted across the N cells, thereby increasing the transmission bandwidth of the positioning reference signals. Positioning accuracy increases with increasing signal bandwidth. Therefore, in this embodiment of the present application, aggregating and transmitting positioning reference signals across multiple cells can improve positioning accuracy.

[0089] It should also be noted that in the prior art, SRS can only be sent in activated cells and under activated BWP. Therefore, when transmitting SRS on multiple cells, all of these cells must be activated. The activated cell must perform all the actions of an activated cell, such as PDCCH monitoring. However, if the activated cell is a secondary cell used only to transmit positioning reference signals, there is often no data scheduling on these cells, which wastes terminal power.

[0090] In an embodiment of the present application, among the secondary cells participating in the aggregated transmission of the positioning reference signal, at least some of the secondary cells can be used only to transmit the positioning reference signal, and do not need to perform other actions besides transmitting the positioning reference signal. In this way, the terminal can save some power on these secondary cells.

[0091] It can be seen that when the positioning reference signals are aggregated and transmitted on N cells, if at least some of the secondary cells in the N cells are only used to transmit the positioning reference signals, the terminal power can be saved while improving the positioning accuracy.

[0092] Optionally, when transmitting the positioning reference signal, the secondary cell is in an activated state. Here, the secondary cell can be activated before or when the positioning reference signal needs to be transmitted. That is, after the secondary cell enters the activated state, it can transmit the positioning reference signal. This can also be understood as meaning that after the secondary cell is deactivated, it cannot transmit the positioning reference signal.

[0093] It should be noted that if the RRC connection of the terminal is in an inactive state, then when the secondary cell is in a deactivated state, the terminal may transmit a positioning reference signal on the secondary cell.

[0094] Optionally, the method further includes:

[0095] The terminal receives first information, where the first information is used to instruct activation or deactivation of the secondary cell;

[0096] The terminal activates or deactivates the secondary cell according to the first information.

[0097] Therefore, it can be seen that in the embodiment of the present application, the terminal can activate or deactivate the secondary cell according to the first information sent by the network side device. For example, when the first information indicates to activate the secondary cell, the terminal can activate the secondary cell according to the instruction of the first information, so that the positioning reference signal can be transmitted on the secondary cell.

[0098] Optionally, the first information includes at least one of the following items B-1 to B-4:

[0099] Item B-1: Media Access Control Control Element (MAC CE) used to activate a secondary cell; optionally, the secondary cell activated by the MAC CE is a secondary cell configured to transmit a positioning reference signal; it can be understood that the MAC CE used to activate the secondary cell can also be an enhanced MAC CE.

[0100] Item B-2: MAC CE for deactivating a secondary cell; optionally, the secondary cell for which the MAC CE is used to deactivate is a secondary cell configured for transmitting a positioning reference signal; it is understandable that the MAC CE for deactivating a secondary cell may also be an enhanced MAC CE.

[0101] Item B-3: Target MAC CE, wherein the target MAC CE is used to activate at least one of the positioning reference signal, deactivate the positioning reference signal, and configure the positioning reference signal; here, when the target MAC CE is used to configure the positioning reference signal, for example, it can be used to configure the spatial relationship information of the positioning reference signal. It should be noted that when the target MAC CE is used to activate the positioning reference signal, if the positioning reference signal on a secondary cell is activated, the secondary cell is considered to be activated at the same time; when the target MAC CE is used to deactivate the positioning reference signal, if the positioning reference signal on a secondary cell is deactivated, the secondary cell is considered to be deactivated at the same time.

[0102] Item B-4: Downlink Control Information (DCI), the downlink control information including first indication information, the first indication information being used to indicate at least one of activation of the secondary cell, deactivation of the secondary cell, activation of the positioning reference signal, and deactivation of the positioning reference signal. It should be noted that when the first indication information is used to activate the positioning reference signal, if the positioning reference signal on a secondary cell is activated, the secondary cell is considered to be activated at the same time; when the first indication information is used to deactivate the positioning reference signal, if the positioning reference signal on a secondary cell is deactivated, the secondary cell is considered to be deactivated at the same time.

[0103] Exemplarily, one bit is added to the DCI to indicate whether the positioning reference signal is transmitted in an aggregated manner; for example, in DCI modes (format) 0_1, 0_2, 1_1, 1_2, and 2_3, one bit can be added to the DCI to indicate whether the positioning reference signal is transmitted in an aggregated manner; and / or, the secondary cell identification information is added to the DCI to indicate the aggregated transmission of the positioning reference signal. For example, the identification information here includes the identification information of cell 1 and cell 2, which indicates that the aggregated transmission of the positioning reference signals of cells 1 and 2 is activated.

[0104] It should also be noted that if the secondary cell is configured as a secondary cell for transmitting a positioning reference signal, the terminal may default to the secondary cell being in an activated state or always consider the secondary cell to be in an activated state at least when transmitting the positioning reference signal.

[0105] Optionally, in one embodiment, the terminal may determine whether the secondary cell is activated or deactivated based on the configuration information of the positioning reference signal of the secondary cell. That is, if the secondary cell sends a positioning reference signal at time T1, the terminal considers the cell to be activated starting at time T1-x. Furthermore, if the secondary cell stops sending the positioning reference signal at time T1+X1, the terminal deactivates the secondary cell at time T1+X1+X2.

[0106] In another embodiment, if the activation time of the secondary cell is related to the transmission time of the positioning reference signal, normal cell activation operations, such as PDCCH monitoring and PHR reporting, can be performed during the activation time of the secondary cell. This is because the activation time is very short, and even if additional operations are performed, excessive power consumption will not be lost.

[0107] Optionally, the target MAC CE carries at least one of the following items C-1 to C-7:

[0108] Item C-1: Aggregation indication information, which indicates whether to aggregate and transmit positioning reference signals. For example, when the aggregation indication information is "AG", it indicates that positioning reference signals are aggregated and transmitted.

[0109] Item C-2: identification information of the cell group to which the N cells belong; that is, if the N cells are divided into a cell group, the target MAC CE may also carry the identification information of the cell group; for example, if the target MAC CE carries the identification information of a cell group, it indicates activation or deactivation of cells in the cell group identified by the identification information;

[0110] Item C-3: identification information of the N cells (e.g., cell identifiers); for example, if the target MAC CE carries identification information of N cells, it indicates activation or deactivation of the cells identified by the N identification information;

[0111] Item C-4: second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0112] Item C-5: Bandwidth Part (BWP) identification information; Here, the BWP identification information is used to indicate the BWP in the activated or deactivated cell;

[0113] Item C-6: Activation information of positioning reference signal;

[0114] Item C-7: Positioning reference signal request information. Here, the positioning reference signal request information is used to indicate an activated positioning reference signal. For example, if the positioning reference signal request information is SRS request, it is used to indicate an activated SRS.

[0115] Exemplarily, the target MAC CE may be as shown in FIG4 , wherein, in the first reserved bit 401 and the second reserved bit 402 in FIG4 , one bit may be used to indicate whether the positioning reference signal is transmitted in an aggregated manner. For example, if the first reserved bit 401 is "AG", it indicates that the positioning reference signal is transmitted in an aggregated manner. In this case, the positions of "SRS Resource Set's Cell ID" and "SRS Resource Set's BWP ID" in FIG4 may be replaced with identification information of the cell performing the aggregated transmission; or, the first reserved bit 401 and the second reserved bit 402 in FIG4 may respectively indicate whether the two cells are activated or deactivated. If activated, the positioning reference signal needs to be transmitted in an aggregated manner on the activated cell. It should be noted that whether the above-mentioned cells transmit positioning reference signals in an aggregated manner can be configured through high-layer signaling or RRC signaling.

[0116] Exemplarily, the target MAC CE may also be as shown in FIG5 . The third reserved bit 501 in FIG5 may be used to indicate whether the positioning reference signal is aggregated for transmission. For example, if the third reserved bit 501 is "AG", it indicates that the positioning reference signal is aggregated for transmission. In this case, the positions of "Positioning SRS Resource Set's Cell ID" and "Positioning SRS Resource Set's BWP ID" in FIG5 may be replaced with identification information of the cell performing aggregate transmission.

[0117] Alternatively, the third reserved bit 501 in FIG5 can be used to indicate whether the positioning reference signal is aggregated for transmission. For example, if the third reserved bit 501 is "AG", it indicates the aggregation of the positioning reference signal. In this case, the position of "Positioning SRS Resource Set's Cell ID" in FIG5 can be used to indicate the activated cell and the aggregated set (i.e., the aggregated SRS resource set). If 2 bits are used to indicate a set, it means that a maximum of 4 aggregate sets are associated, i.e., the values ​​of these 2 bits can be 00, 01, 10, and 11, wherein these four values ​​can indicate that the above-mentioned 4 associated aggregate sets are mapped to 00, 01, 10, and 11 in ascending order of set ID. The remaining 2 bits are used to indicate the activated cell.

[0118] It should be noted that the aggregated set means that the positioning reference signals on these resource sets are aggregated and transmitted.

[0119] In addition, the relevant descriptions of each field in Figure 4 are as follows:

[0120] The A / D field indicates activation or deactivation, 1 for activation;

[0121] R represents a reserved bit;

[0122] The SRS Resource Set's Cell ID field indicates the identification information of the serving cell and has a length of 5 bits.

[0123] The SRS Resource Set's BWP ID field indicates the identification information of the BWP and has a length of 2 bits.

[0124] The C field indicates whether there is an octet containing the serving cell identification information field and the BWP identification information field. If this field is set to 1, the serving cell identification information field and the BWP identification information field are present, otherwise they do not exist.

[0125] The SUL field indicates whether it is a normal uplink (NUL) carrier or a supplementary uplink (SUL) carrier, where a value of 1 indicates a SUL carrier and a value of 0 indicates a NUL carrier;

[0126] The SP SRS Resource Set ID field indicates the SRS resource set ID, which is 4 bits long.

[0127] F i The field indicates the type of spatial relation reference signal. If the field is 1, it means non-zero power (NZP) CSI-RS. If the field is 0, it means the spatial relation reference signal is SSB, that is, F i The spatial relationship reference signal is used to indicate the i-th SRS resource in the SRS resource set, where i is an integer from 0 to M-1.

[0128] Resource ID i The field is used to indicate the identification information of the spatial relationship of the corresponding SRS. i is 0, and Resource ID i The first bit of the field is 1, and the remaining bits are the specified SSB index; if F i is 0, and Resource ID i The first bit of the field is 0, and the remaining bits are the specified SRS resource ID. The length of this field is 7 bits.

[0129] Resource Serving Cell ID i This field indicates the serving cell ID of the spatial relation reference signal, and its length is 5 bits.

[0130] Resource BWP ID i This field indicates the BWP ID of the spatial relation reference signal and has a length of 2 bits.

[0131] The relevant descriptions of each field in Figure 5 are as follows:

[0132] The A / D field indicates activation or deactivation, 1 for activation;

[0133] R represents a reserved bit;

[0134] The Positioning SRS Resource Set's Cell ID field indicates the identification information of the serving cell and has a length of 5 bits.

[0135] The Positioning SRS Resource Set's BWP ID field indicates the identification information of the BWP and has a length of 2 bits.

[0136] The C field indicates whether there is an octet containing the serving cell identification information field and the BWP identification information field. If this field is set to 1, the serving cell identification information field and the BWP identification information field are present, otherwise they do not exist.

[0137] The SUL field indicates whether it is a NUL carrier or a SUL carrier, where a 1 indicates a SUL carrier and a 0 indicates a NUL carrier;

[0138] The Positoining SRS Resource Set ID field indicates the SRS resource set ID, which is 4 bits long.

[0139] Spatial Relation for Resource ID i Field represents the resource ID i The spatial relationship of , where this field appears only when the A / D field is set to 1. The length of this field is determined by the F and C fields, and i is an integer from 0 to M-1;

[0140] The S field indicates whether the spatial relationship field of the positioning SRS resource IDi in the positioning SRS resource set exists; if this field is set to 1, the "spatial relationship of resource IDi" field exists; otherwise, it does not exist.

[0141] Optionally, the downlink control information (DCI) carries time domain information of the positioning reference signal. The time domain information can be used to indicate the actual offset (time slot) number of the positioning reference signal transmission position relative to the reference position, or can also be used to indicate the positioning reference signal transmission position, as shown in FIG6 .

[0142] Optionally, the RRC may further configure whether the secondary cell is a secondary cell that only includes the transmission of the positioning reference signal, or whether the secondary cell is a secondary cell configured to transmit the positioning reference signal. Furthermore, the RRC may further indicate that the activation time of the secondary cell is related to the transmission time of the positioning reference signal configured by the RRC.

[0143] Optionally, the method further includes:

[0144] When the secondary cell is in an activated state, the terminal performs at least one of the following D-1 to D-6:

[0145] Item D-1: Not reporting the channel state information (CSI) of the secondary cell;

[0146] Item D-2: not transmitting an uplink shared channel (UL-SCH) on the secondary cell;

[0147] Item D-3: not transmitting the Physical Random Access Channel (PRACH) on the secondary cell;

[0148] Item D-4: Do not monitor the Physical Downlink Control Channel (PDCCH) of the secondary cell;

[0149] Item D-5: Do not transmit the PUCCH on the secondary cell;

[0150] Item D-6: Monitor the target PDCCH about the secondary cell, the target PDCCH includes at least downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0151] Among them, when the secondary cell is in an activated state, the terminal executes at least one of the above D-1 to D-5, so as to only activate the transmission of the positioning reference signal to improve the positioning performance, but shut down other communication modules to further save the terminal's power.

[0152] In addition, the above-mentioned target PDCCH includes at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal. It can be seen that the target PDCCH is associated with the transmission of the positioning signal, so it is necessary to monitor the PDCCH of the secondary cell.

[0153] Optionally, the method further includes:

[0154] When the secondary cell is in an activated state and the first condition is met, the terminal performs at least one of the following E-1 to E-3:

[0155] Item E-1: Do not monitor the PDCCH of the secondary cell;

[0156] Item E-2: Do not trigger a Power Headroom Report (PHR) report for the secondary cell;

[0157] Item E-3: Failure to perform at least one of activation and restart of pre-configured resources;

[0158] The first condition includes at least one of: the terminal is in a low power consumption state, the RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0159] Optionally, the “secondary cell is not configured with an aperiodic positioning reference signal” in the first condition may specifically mean that when the secondary cell is configured as a secondary cell for transmitting a positioning reference signal, it is not configured with an aperiodic positioning reference signal.

[0160] In addition, the purpose of the low power state and the inactive state of the RRC connection is to reduce terminal energy consumption and delay. When the secondary cell is activated and the terminal is in the low power state or the inactive state of the RRC connection, the above E-1 to E-3 can save terminal energy consumption.

[0161] In addition, if the secondary cell only includes the transmission of the positioning reference signal, the protocol may also directly stipulate that the terminal performs at least one of the following items E-1 to E-3, for example: not triggering the reporting of a Power Headroom Report (PHR) for the secondary cell. This is because the transmission of the positioning reference signal is already power controlled, and if the cell does not require additional uplink transmission, there is no need to report the PHR.

[0162] Optionally, item F-1: the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0163] or,

[0164] Item F-2: If a second condition is met, the second timer is not started, where the second timer is started or stopped according to data scheduling on the secondary cell, and the second condition includes at least one of: the secondary cell only includes transmission of the positioning reference signal, and the secondary cell is configured as a secondary cell for transmitting the positioning reference signal;

[0165] or,

[0166] Item F-3: When the second condition is met, the secondary cell is not associated with the second timer.

[0167] In item F-1, the first timer can be started or stopped according to the transmission of the positioning reference signal on the secondary cell, that is, the first timer is started when the transmission of the positioning reference signal occurs, and the secondary cell is deactivated when the timing time of the first timer expires; in this way, the secondary cell will not be deactivated when there is positioning reference signal transmission but no data transmission, resulting in the secondary cell needing to be frequently activated in order to transmit the positioning reference signal.

[0168] Optionally, in item F-1, the secondary cell includes configuration information of a timer or a time window related to the transmission of a positioning reference signal, so that the secondary cell can be activated when the timer expires or within the time window.

[0169] In item F-2, if the secondary cell only includes the transmission of the positioning reference signal, and / or the secondary cell is configured as a cell for transmitting the positioning reference signal, then the second timer that is started or shut down according to the data scheduling on the secondary cell is not started, that is, in this case, the second timer does not control the activation and deactivation of the secondary cell; in this way, when there is positioning reference signal transmission but no data transmission, the secondary cell is not deactivated, resulting in the secondary cell needing to be frequently activated in order to transmit the positioning reference signal.

[0170] In item F-3, if the secondary cell only includes the transmission of the positioning reference signal, and / or the secondary cell is configured as a cell for transmitting the positioning reference signal, then the secondary cell is not associated with the second timer, that is, in this case, the second timer does not control the activation and deactivation of the secondary cell; in this way, when there is positioning reference signal transmission but no data transmission, the secondary cell is not deactivated, resulting in the secondary cell needing to be frequently activated to transmit the positioning reference signal.

[0171] Optionally, the method further includes:

[0172] In a case where the radio resource control (RRC) release message carries the configuration information of the secondary cell, the terminal performs at least one of the following steps J-1 to J-5:

[0173] Item J-1: transmitting the positioning reference signal on the secondary cell;

[0174] Item J-2: Small Data Transmission (SDT) is not performed on the secondary cell;

[0175] Item J-3: Not transmitting a small data packet transmission power headroom report (SDT PHR) on the secondary cell;

[0176] Item J-4: PRACH is not transmitted on the secondary cell;

[0177] Item J-5: Reference signals (eg, synchronization signal blocks (SSBs), PRSs) are not measured on the secondary cell.

[0178] In related technologies, when a terminal switches from a connected state to an inactive state, it sends an RRC release message to the network device. Generally, after sending this RRC release message, the terminal defaults to operating on the primary cell, i.e., the secondary cell is deactivated. However, in an embodiment of the present application, if the RRC release message carries configuration information for at least one secondary cell, it indicates that these secondary cells must be activated and positioning reference signals must be aggregated and sent on these secondary cells. Therefore, if the RRC release message carries configuration information for the secondary cell, positioning reference signals can be transmitted on the secondary cell.

[0179] In addition, items J-2 to J-5 above indicate that if the RRC release message carries secondary cell configuration information, the secondary cell must be activated and at least one of SDT, PRACH, and reference signal measurement must not be transmitted on these secondary cells. This allows for aggregated transmission of positioning reference signals while saving terminal power. This is also intended to further constrain the cells that transmit initial access and SDT, eliminating the need for the network to detect PRACH on multiple cells.

[0180] Furthermore, when the RRC release message carries configuration information of the secondary cell and the secondary cell is in the inactive state, the terminal executes at least one of the above J-1 to J-5.

[0181] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following items H-1 to H-2:

[0182] H-1 item: ScellDeactivationTimer is infinite or equal to the time advance timer TA timer;

[0183] H-2: ScellDeactivationTimer does not start or fails.

[0184] Among them, if the RRC release message carries the configuration information of the secondary cell, then the secondary cell must be in an activated state. Then, if ScellDeactivationTimer satisfies at least one of the above H-1 to H-2, it means that the secondary cell corresponding to ScellDeactivationTimer is in an activated state, so that the positioning reference signal can be transmitted on the secondary cell, thereby realizing the aggregated transmission of the positioning reference signal.

[0185] Optionally, if the RRC release message carries configuration information of the secondary cell and configuration information of the positioning reference signal, the terminal may understand that the secondary cell is in an activated state only when transmitting the positioning reference signal.

[0186] Optionally, if the RRC release message carries configuration information of the secondary cell and configuration information of the positioning reference signal, the terminal may understand that the secondary cell is in a deactivated state, but may be in an activated state when the secondary cell transmits the positioning reference signal.

[0187] Furthermore, when the RRC release message carries configuration information of the secondary cell and the secondary cell is in the inactive state, ScellDeactivationTimer satisfies at least one of the above conditions H-1 to H-2.

[0188] As can be seen from the above, J-1 to J-5 and H-1 to H-2 are specific implementations of activating the secondary cell when the RRC release message carries the configuration information of the secondary cell.

[0189] Optionally, the method further includes:

[0190] When the secondary cell is in a deactivated state, the terminal does not transmit the positioning reference signal on the secondary cell.

[0191] It can be seen from this that when the secondary cell is in a deactivated state, the terminal may no longer transmit a positioning reference signal on the secondary cell.

[0192] Optionally, the positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following:

[0193] Use the same RF link and antenna;

[0194] have the same subcarrier spacing;

[0195] have the same time slot and symbol;

[0196] have the same cyclic prefix (CP);

[0197] have the same cyclic shift;

[0198] have the same period;

[0199] Have the same positioning reference signal type (e.g., periodic, aperiodic, semi-static).

[0200] For example, if the positioning reference signals on cell 1 and cell 2 are aggregated for transmission, then the positioning reference signal transmitted on cell 1 and the positioning reference signal transmitted on cell 2 can use the same RF link and antenna; can have the same time slot and symbol; can have the same cyclic prefix; can have the same cyclic shift; can have the same period; and can belong to the same positioning reference signal type.

[0201] It can be understood that each cell includes at least one aggregated SRS resource set, and at least one SRS resource set in one cell can be associated with the SRS resource sets in the other N-1 cells. For example, cell 1 includes SRS resource sets A and B, cell 2 includes SRS resource sets C and D, and cell 3 includes SRS resource sets E and F. Optionally, SRS resource set A can be associated with C and E.

[0202] Among them, if the number of SRS resources in the associated SRS resource sets is the same, a mapping relationship can exist between the SRS resources in the associated SRS resource sets, so that at least part of these SRS resources with a mapping relationship can be aggregated to transmit positioning reference signals. For example, when SRS resource set A is associated with C and E, SRS resource1 in SRS resource set A of cell 1, SRS resource1 in SRS resource set C of cell 2, and SRS resource1 in SRS resource set E of cell 3 can be aggregated to transmit positioning reference signals.

[0203] In this case, the SRS resource for aggregated transmission of positioning reference signals satisfies at least one of the following conditions:

[0204] Use the same RF link and antenna;

[0205] have the same subcarrier spacing;

[0206] have the same time slot and symbol;

[0207] have the same cyclic prefix (CP);

[0208] have the same cyclic shift;

[0209] have the same period;

[0210] Have the same positioning reference signal type (e.g., periodic, aperiodic, semi-static).

[0211] In addition, it should be noted that the association relationship between the above-mentioned SRS resource sets can be configured only on one or more cells to which the associated SRS resource sets belong, or can be configured on all cells to which the associated SRS resource sets belong. For example, the association relationship between the above-mentioned SRS resource set A and C and E can be configured on at least one of cell 1, cell 2, and cell 3.

[0212] Further, optionally, the positioning reference signals aggregated and transmitted on the N cells may also satisfy at least one of the following conditions:

[0213] Have the same spatial relationship information;

[0214] Have the same path loss reference signal;

[0215] have the same power adjustment coefficients (e.g., parameters p0 and α involved in power adjustment);

[0216] have the same maximum transmit power;

[0217] have the same number of symbols;

[0218] Have the same time domain starting position (such as slot or symbol starting position).

[0219] For example, if the positioning reference signals on cell 1 and cell 2 are aggregated for transmission, then at least one of the spatial relationship information, path loss reference signal, power adjustment system, maximum transmit power, number of symbols, and time domain starting position of the positioning reference signal transmitted on cell 1 and the positioning reference signal transmitted on cell 2 may be the same.

[0220] Optionally, the method further includes:

[0221] Before performing the positioning reference signal measurement, the terminal reports target capability information to a network-side device;

[0222] The target capability information includes at least one of the following:

[0223] whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0224] The terminal supports a number of secondary cells used only for transmitting the positioning reference signal.

[0225] The network side device may be an access network device (such as a base station) or a core network device (such as a location server).

[0226] From this, it can be seen that the terminal can also report to the network side device whether it supports secondary cells used only for transmitting positioning reference signals and at least one of the number of secondary cells supported only for transmitting positioning reference signals, so that the network side device can configure a suitable secondary cell for the terminal.

[0227] Optionally, the method further comprises the following step V-1:

[0228] Step V-1: When a transmission time of a target object scheduled or configured for transmission on M of the N cells overlaps with a transmission time of the aggregated transmission of the positioning reference signal, and a priority of the target object is higher than a priority of the positioning reference signal, the terminal performs at least one of the following:

[0229] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0230] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells in the N cells;

[0231] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0232] As mentioned above, at least some of the secondary cells in the N cells are only used to transmit positioning reference signals, but there may also be cells in the N cells that can transmit positioning reference signals and other signals (such as primary cells and other secondary cells). For example, there are M cells in the N cells that can transmit positioning reference signals and the above-mentioned target objects, and the transmission time of the target objects on the M cells overlaps with the transmission time of the positioning reference signals transmitted aggregated on the M cells, and the priority of the target object is higher than the priority of the positioning reference signal. Then, the positioning reference signal may not be transmitted on at least one of the M cells, and / or the positioning reference signal may be transmitted on cells other than the M cells in the N cells.

[0233] For example, N cells include cells 1, 2, and 3. The transmission time of the target object in cell 1 overlaps with the transmission time of the positioning reference signal in cell 1, and the priority of the target object in cell 1 is higher than the priority of the positioning reference signal in cell 1. In this case, the positioning reference signal may not be transmitted in cell 1, but may be transmitted in cells 2 and 3.

[0234] Optionally, step V-1 may be applied to a reception process of a positioning reference signal. For example, when a transmission time of a target object scheduled or configured for transmission in M ​​of N cells overlaps with a reception time of an aggregated transmission PRS, and a priority of the target object is higher than a priority of the PRS, the terminal performs at least one of the following:

[0235] Not receiving PRS on at least one of the M cells;

[0236] A PRS is received on other cells, where the other cells include cells other than the M cells among the N cells, and the target object includes a channel or a signal other than the PRS.

[0237] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells, so that the terminal can transmit positioning reference signals on the other cells.

[0238] For example, in the aforementioned example, N cells include cells 1, 2, and 3. The transmission time of the target object in cell 1 overlaps with the transmission time of the positioning reference signal in cell 1, and the priority of the target object in cell 1 is higher than the priority of the positioning reference signal in cell 1. In this case, the positioning reference signal can be transmitted in cells 2 and 3 instead of in cell 1. In this case, the priority of the positioning reference signal aggregated and transmitted in cells 1, 2, and 3 is higher than the priority of the positioning reference signal transmitted in cells 2 and 3. That is, the priority of the positioning reference signal aggregated and transmitted in cells 1, 2, and 3 is higher than the priority of the positioning reference signal actually transmitted in cells 2 and 3. It should be noted that in this case, the positioning reference signals in cells 2 and 3 can be aggregated and transmitted.

[0239] Alternatively, for example, N cells include cells 1, 2, and 3, where the transmission time of a target object in cell 2 overlaps with the transmission time of a positioning reference signal in cell 2, and the priority of the target object in cell 2 is higher than the priority of the positioning reference signal in cell 2. In this case, the positioning reference signal may not be transmitted in cell 2, but may be transmitted in cells 1 and 3. In this case, the priority of the positioning reference signal aggregated and transmitted in cells 1, 2, and 3 is higher than the priority of the positioning reference signal transmitted in cells 1 and 3. That is, the priority of the positioning reference signal aggregated and transmitted in cells 1, 2, and 3 is higher than the priority of the positioning reference signal actually transmitted in cells 1 and 3. It should be noted that in this case, the positioning reference signals in cells 1 and 3 cannot be aggregated and transmitted.

[0240] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal reference set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is aggregated transmission, where K is greater than zero.

[0241] It can be seen from this that if K positioning reference signals belong to a positioning reference signal set associated with an aggregated transmission positioning reference signal, then the priority of these K positioning reference signals is related to whether aggregated transmission is performed. For example, when aggregated transmission is performed, the priority of these K positioning reference signals is the first preset priority; for example, when aggregated transmission is not performed, the priority of these K positioning reference signals is the second preset priority; here, the first preset priority can be higher than the second preset priority.

[0242] In another embodiment, when a transmission time of a target object scheduled or configured to be transmitted on M of the N cells overlaps with a transmission time of the aggregated transmission of the positioning reference signal, and a priority of the target object is higher than a priority of the positioning reference signal, the terminal performs at least one of the following:

[0243] The positioning reference signal is not transmitted in any of the N cells.

[0244] In a second aspect, an embodiment of the present application provides a positioning reference signal transmission method, as shown in FIG7 , the method comprising the following steps:

[0245] Step 701: The network-side device determines N cells for aggregated transmission of positioning reference signals;

[0246] The network side device may be an access network device (such as a base station) or a core network device (such as a location server).

[0247] Step 702: The network-side device configures the N cells to the terminal;

[0248] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following A-1 to A-3:

[0249] Item A-1: ​​The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of the physical uplink shared channel PUSCH and the physical uplink control channel PUCCH is not configured;

[0250] Item A-2: The secondary cell only includes transmission of the positioning reference signal;

[0251] Item A-3: The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0252] In the embodiment of the present application, after receiving the configured N cells, the terminal aggregates and transmits positioning reference signals on the N cells.

[0253] Aggregate transmission can be understood as carrier aggregation. In general, carrier aggregation refers to:

[0254] On two or more carriers, the terminal can send and receive data simultaneously, instead of being able to send and receive data only on the activated BWP of one carrier as in the non-aggregated scenario.

[0255] That is, in the embodiment of the present application, aggregate transmission refers to transmitting positioning reference signals on N cells at the same time, thereby increasing the transmission bandwidth of the positioning reference signal. It should be noted that the transmission positioning reference signal here can be sending an uplink positioning reference signal (i.e., SRS) or receiving a downlink positioning reference signal (i.e., PRS). In the case of receiving a downlink reference signal, the N cells can also be understood as N positioning frequency layers. Optionally, the positioning frequency domain layer includes the identification information of the cell.

[0256] In one embodiment, the N cells belong to one band, that is, the carrier aggregation is carrier aggregation of multiple carriers within the band. Typically, a band or a TAG has only one primary cell, so the N cells include N-1 secondary cells.

[0257] In one embodiment, N is an integer greater than 1, and the N cells include at least a secondary cell, that is, the N cells may include a primary cell and one or more secondary cells, or the N cells may include one or more secondary cells.

[0258] In addition, it can be seen from the above A-1 to A-3 that the N cells may include at least one of: a secondary cell used only for transmitting a positioning reference signal, and a secondary cell used for transmitting a positioning reference signal and other signals except the positioning reference signal.

[0259] As can be seen, in this embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has relevant configurations for positioning reference signals. In this way, positioning reference signals can be aggregated and transmitted across the N cells, thereby increasing the transmission bandwidth of the positioning reference signals. Positioning accuracy increases with increasing signal bandwidth. Therefore, in this embodiment of the present application, aggregating and transmitting positioning reference signals across multiple cells can improve positioning accuracy.

[0260] Optionally, the method further includes:

[0261] The network side device receives the target capability information reported by the terminal;

[0262] The network-side device determines N cells for aggregate transmission of positioning reference signals, including:

[0263] The network-side device determines, according to the target capability information, N cells for aggregated transmission of positioning reference signals;

[0264] The target capability information includes at least one of the following:

[0265] whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0266] The terminal supports a number of secondary cells used only for transmitting the positioning reference signal.

[0267] From this, it can be seen that the terminal can also report to the network side device whether it supports secondary cells used only for transmitting positioning reference signals and at least one of the number of secondary cells supported only for transmitting positioning reference signals, so that the network side device can configure a suitable secondary cell for the terminal.

[0268] The positioning reference signal transmission method provided in the embodiment of the present application can be executed by a positioning reference signal transmission device. In the embodiment of the present application, the positioning reference signal transmission device performing the positioning reference signal transmission method is used as an example to illustrate the positioning reference signal transmission device provided in the embodiment of the present application.

[0269] In a third aspect, an embodiment of the present application further provides a positioning reference signal transmission device. As shown in FIG8 , the positioning reference signal transmission device 80 may include the following modules:

[0270] The transmission module 801 is configured to aggregate and transmit positioning reference signals on N cells;

[0271] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0272] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0273] The secondary cell only includes transmission of the positioning reference signal;

[0274] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0275] Optionally, when transmitting the positioning reference signal, the secondary cell is in an activated state.

[0276] Optionally, the device further comprises:

[0277] A first receiving module is configured to receive first information, where the first information is used to indicate activation or deactivation of the secondary cell;

[0278] The first execution module is configured to activate or deactivate the secondary cell according to the first information.

[0279] Optionally, the first information includes at least one of the following:

[0280] Media access control element MAC CE used to activate the secondary cell;

[0281] MAC CE used to deactivate the secondary cell;

[0282] a target MAC CE, wherein the target MAC CE is used to activate at least one of the positioning reference signal, deactivate the positioning reference signal, and configure the positioning reference signal;

[0283] Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0284] Optionally, the target MAC CE carries at least one of the following:

[0285] Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals;

[0286] identification information of the cell group to which the N cells belong;

[0287] identification information of the N cells;

[0288] second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0289] Identification information of the bandwidth part BWP;

[0290] Activation information of positioning reference signal;

[0291] Positioning reference signal request information.

[0292] Optionally, the downlink control information carries time domain information of the positioning reference signal.

[0293] Optionally, the device further comprises:

[0294] The second execution module is configured to, when the secondary cell is in an activated state, execute at least one of the following:

[0295] Not reporting the channel state information CSI about the secondary cell;

[0296] Not transmitting an uplink shared channel UL-SCH on the secondary cell;

[0297] not transmitting a physical random access channel PRACH on the secondary cell;

[0298] Not monitoring the physical downlink control channel PDCCH of the secondary cell;

[0299] Not transmitting the PUCCH on the secondary cell;

[0300] Monitor the target PDCCH of the secondary cell, where the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, where the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0301] Optionally, the device further comprises:

[0302] The third execution module is configured to, if the secondary cell is in an activated state and the first condition is met, execute at least one of the following:

[0303] not monitoring the PDCCH of the secondary cell;

[0304] Not triggering a power headroom report (PHR) report for the secondary cell;

[0305] At least one of activation and restart of the provisioned resource is not performed;

[0306] The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control (RRC) connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0307] Optionally, the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0308] or,

[0309] If a second condition is met, a second timer is not started, wherein the second timer is started or stopped according to data scheduling on the secondary cell, and the second condition includes at least one of: only transmission of the positioning reference signal on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal;

[0310] or,

[0311] When the second condition is met, the secondary cell is not associated with the second timer.

[0312] Optionally, the device further comprises:

[0313] The fourth execution module is configured to, when the radio resource control (RRC) release message carries the configuration information of the secondary cell, execute at least one of the following:

[0314] transmitting the positioning reference signal on the secondary cell;

[0315] Not performing small data packet transmission (SDT) on the secondary cell;

[0316] Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell;

[0317] Not transmitting the PRACH on the secondary cell;

[0318] No reference signal is measured on the secondary cell.

[0319] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following:

[0320] ScellDeactivationTimer is infinite or equal to the time advance timer TA timer;

[0321] ScellDeactivationTimer does not start or is invalid.

[0322] Optionally, the device further comprises:

[0323] The fifth execution module is configured to not transmit the positioning reference signal on the secondary cell when the secondary cell is in a deactivated state.

[0324] Optionally, the positioning reference signals aggregated and transmitted on the N cells meet at least one of the following conditions:

[0325] Use the same RF link and antenna;

[0326] have the same subcarrier spacing;

[0327] have the same time slot and symbol;

[0328] have the same cyclic prefix;

[0329] have the same cyclic shift;

[0330] have the same period;

[0331] Have the same positioning reference signal type.

[0332] Optionally, the device further comprises:

[0333] A reporting module, configured to report target capability information to a network-side device before performing the positioning reference signal measurement;

[0334] The target capability information includes at least one of the following:

[0335] whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0336] The terminal supports a number of secondary cells used only for transmitting the positioning reference signal.

[0337] Optionally, the device further comprises:

[0338] A sixth execution module is configured to, when a transmission time of a target object scheduled or configured for transmission in M ​​of the N cells overlaps with a transmission time of the aggregated transmission of the positioning reference signal, and a priority of the target object is higher than a priority of the positioning reference signal, perform at least one of the following:

[0339] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0340] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells in the N cells;

[0341] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0342] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on other cells.

[0343] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal reference set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is aggregated transmission, where K is greater than zero.

[0344] The positioning reference signal transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal. For example, the terminal can include, but is not limited to, the types of terminal 11 listed above. Other devices can include servers, network attached storage (NAS), and the like, and are not specifically limited in the embodiments of the present application.

[0345] The positioning reference signal transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 3 to 6 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0346] In a fourth aspect, embodiments of the present application further provide a positioning reference signal transmission apparatus, which can be applied to a network-side device. As shown in FIG9 , the positioning reference signal transmission apparatus 90 may include the following modules:

[0347] A first determining module 901 is configured to determine N cells for aggregated transmission of positioning reference signals;

[0348] A configuration module 902 is configured to configure the N cells to the terminal;

[0349] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0350] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0351] The secondary cell only includes transmission of the positioning reference signal;

[0352] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0353] Optionally, the device further comprises:

[0354] A second receiving module is used to receive target capability information reported by the terminal;

[0355] The configuration module 902 is specifically used to:

[0356] Determining, according to the target capability information, N cells for aggregate transmission of positioning reference signals;

[0357] The target capability information includes at least one of the following:

[0358] whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0359] The terminal supports a number of secondary cells used only for transmitting the positioning reference signal.

[0360] The positioning reference signal transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component within an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device. Exemplarily, the network-side device can include, but is not limited to, the types of network-side device 12 listed above, and is not specifically limited in the embodiments of the present application.

[0361] The positioning reference signal transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 7 and achieve the same technical effects. To avoid repetition, it will not be described here.

[0362] As shown in Figure 10, an embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002. The memory 1002 stores a program or instruction executable on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction, when executed by the processor 1001, implements the various steps of the embodiment of the positioning reference signal transmission method described in the first aspect above, and can achieve the same technical effects. When the communication device 1000 is a network-side device, the program or instruction, when executed by the processor 1001, implements the various steps of the embodiment of the positioning reference signal transmission method described in the second aspect above, and can achieve the same technical effects. To avoid repetition, they are not further described here.

[0363] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG3 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG11 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0364] The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of the processor 1110.

[0365] Those skilled in the art will appreciate that the terminal 1100 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1110 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG11 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0366] It should be understood that in an embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0367] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1101 may transmit the data to the processor 1110 for processing. Furthermore, the RF unit 1101 may send uplink data to the network-side device. Typically, the RF unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0368] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0369] Processor 1110 may include one or more processing units. Optionally, processor 1110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1110.

[0370] The radio frequency unit 1101 is used to aggregate and transmit positioning reference signals on N cells;

[0371] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0372] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0373] The secondary cell only includes transmission of the positioning reference signal;

[0374] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0375] Optionally, when transmitting the positioning reference signal, the secondary cell is in an activated state.

[0376] Optionally, the radio frequency unit 1101 is further configured to: receive first information, where the first information is used to indicate activation or deactivation of the secondary cell;

[0377] The processor 1110 is configured to activate or deactivate the secondary cell according to the first information.

[0378] Optionally, the first information includes at least one of the following:

[0379] Media access control element MAC CE used to activate the secondary cell;

[0380] MAC CE used to deactivate the secondary cell;

[0381] a target MAC CE, wherein the target MAC CE is used to activate at least one of the positioning reference signal, deactivate the positioning reference signal, and configure the positioning reference signal;

[0382] Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0383] Optionally, the target MAC CE carries at least one of the following:

[0384] Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals;

[0385] identification information of the cell group to which the N cells belong;

[0386] identification information of the N cells;

[0387] second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0388] Identification information of the bandwidth part BWP;

[0389] Activation information of positioning reference signal;

[0390] Positioning reference signal request information.

[0391] Optionally, the downlink control information carries time domain information of the positioning reference signal.

[0392] Optionally, the radio frequency unit 1101 is further configured to:

[0393] When the secondary cell is in an activated state, perform at least one of the following:

[0394] Not reporting the channel state information CSI about the secondary cell;

[0395] Not transmitting an uplink shared channel UL-SCH on the secondary cell;

[0396] not transmitting a physical random access channel PRACH on the secondary cell;

[0397] Not monitoring the physical downlink control channel PDCCH of the secondary cell;

[0398] not transmitting the PUCCH on the secondary cell;

[0399] Monitor the target PDCCH of the secondary cell, where the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, where the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0400] Optionally, the radio frequency unit 1101 is further configured to: when the secondary cell is in an activated state and the first condition is met, perform at least one of the following:

[0401] not monitoring the PDCCH of the secondary cell;

[0402] Not triggering a power headroom report (PHR) report for the secondary cell;

[0403] The processor 1110 is further configured to: when the secondary cell is in an activated state and a first condition is met, not perform at least one of activation and restart of the pre-configured resources;

[0404] The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control (RRC) connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0405] Optionally, the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0406] or,

[0407] If a second condition is met, a second timer is not started, wherein the second timer is started or stopped according to data scheduling on the secondary cell, and the second condition includes at least one of: only transmission of the positioning reference signal on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal;

[0408] or,

[0409] When the second condition is met, the secondary cell is not associated with the second timer.

[0410] Optionally, the radio frequency unit 1101 is further configured to:

[0411] When the radio resource control (RRC) release message carries the configuration information of the secondary cell, perform at least one of the following:

[0412] transmitting the positioning reference signal on the secondary cell;

[0413] Not performing small data packet transmission (SDT) on the secondary cell;

[0414] Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell;

[0415] Not transmitting the PRACH on the secondary cell;

[0416] No reference signal is measured on the secondary cell.

[0417] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following:

[0418] ScellDeactivationTimer is infinite or equal to the time advance timer TA timer;

[0419] ScellDeactivationTimer does not start or is invalid.

[0420] Optionally, the radio frequency unit 1101 is further configured to:

[0421] When the secondary cell is in a deactivated state, the positioning reference signal is not transmitted on the secondary cell.

[0422] Optionally, the positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following:

[0423] Use the same RF link and antenna;

[0424] have the same subcarrier spacing;

[0425] have the same time slot and symbol;

[0426] have the same cyclic prefix;

[0427] have the same cyclic shift;

[0428] have the same period;

[0429] Have the same positioning reference signal type.

[0430] Optionally, the radio frequency unit 1101 is further configured to:

[0431] Before performing the positioning reference signal measurement, reporting target capability information to a network-side device;

[0432] The target capability information includes at least one of the following:

[0433] whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0434] The terminal supports a number of secondary cells used only for transmitting the positioning reference signal.

[0435] Optionally, the radio frequency unit 1101 is further configured to:

[0436] When a transmission time of a target object scheduled or configured for transmission on M of the N cells overlaps with a transmission time of the aggregated transmission of the positioning reference signal, and a priority of the target object is higher than a priority of the positioning reference signal, perform at least one of the following:

[0437] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0438] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells in the N cells;

[0439] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0440] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on other cells.

[0441] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is aggregated transmission, where K is greater than zero.

[0442] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0443] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG7 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0444] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 12, the network-side device 1200 includes an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124, and a memory 125. Antenna 121 is connected to radio frequency device 122. In the uplink direction, radio frequency device 122 receives information via antenna 121 and sends the received information to baseband device 123 for processing. In the downlink direction, baseband device 123 processes the information to be transmitted and sends it to radio frequency device 122. Radio frequency device 122 processes the received information and then sends it through antenna 121.

[0445] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123 , which includes a baseband processor.

[0446] The baseband device 123 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 12, one of the chips is, for example, a baseband processor, which is connected to the memory 125 through a bus interface to call the program in the memory 125 and execute the network device operations shown in the above method embodiment.

[0447] The network side device may further include a network interface 126 , which is, for example, a Common Public Radio Interface (CPRI).

[0448] Specifically, the network side device 1200 of an embodiment of the present invention also includes: instructions or programs stored in the memory 125 and executable on the processor 124. The processor 124 calls the instructions or programs in the memory 125 to execute the methods executed by the modules shown in FIG9 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0449] Specifically, the embodiment of the present application further provides a network-side device. As shown in FIG13 , the network-side device 1300 includes a processor 1301, a network interface 1302, and a memory 1303. The network interface 1302 is, for example, a common public radio interface (CPRI).

[0450] Specifically, the network side device 1300 of an embodiment of the present invention also includes: instructions or programs stored in the memory 1303 and executable on the processor 1301. The processor 1301 calls the instructions or programs in the memory 1303 to execute the methods executed by the modules shown in FIG9 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0451] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the method embodiment described in the first aspect or the second aspect above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0452] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0453] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the method embodiments described in the first aspect or the second aspect above, and can achieve the same technical effects. To avoid repetition, they will not be described here.

[0454] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0455] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the method embodiments described in the first aspect or the second aspect above, and can achieve the same technical effects. To avoid repetition, they are not described here.

[0456] An embodiment of the present application also provides a positioning reference signal transmission system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the method described in the first aspect above, and the network-side device can be used to execute the steps of the method described in the second aspect above.

[0457] The processors mentioned in the embodiments of the present application may include general-purpose processors, special-purpose processors, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligence (AI) processor, a graphics processing unit (GPU), an application-specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc.

[0458] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0459] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0460] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A positioning reference signal transmission method, wherein: include: The terminal aggregates and transmits positioning reference signals on N cells; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

2. The method according to claim 1, wherein: When transmitting the positioning reference signal, the secondary cell is in an activated state.

3. The method according to claim 2, wherein: The method further comprises: The terminal receives first information, where the first information is used to indicate activation or deactivation of the secondary cell; The terminal activates or deactivates the secondary cell according to the first information.

4. The method according to claim 3, wherein: The first information includes at least one of the following: A medium access control control element MAC CE used to activate a secondary cell; MAC CE used to deactivate the secondary cell; a target MAC CE, wherein the target MAC CE is used to activate the positioning reference signal, deactivate the positioning reference signal, and configure at least one of the positioning reference signal; Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

5. The method according to claim 4, wherein: The target MAC CE carries at least one of the following: Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals; identification information of the cell group to which the N cells belong; identification information of the N cells; second indication information, where the second indication information is used to indicate the activation status of the N cells; Identification information of the bandwidth part BWP; Activation information of positioning reference signal; Request information for positioning reference signal.

6. The method according to claim 4 or 5, wherein: The downlink control information carries the time domain information of the positioning reference signal.

7. The method according to any one of claims 1 to 6, wherein: The method further comprises: When the secondary cell is in an activated state, the terminal performs at least one of the following: not reporting channel state information CSI about the secondary cell; Not transmitting an uplink shared channel UL-SCH on the secondary cell; Not transmitting a physical random access channel PRACH on the secondary cell; Not monitoring the physical downlink control channel PDCCH of the secondary cell; not transmitting the PUCCH on the secondary cell; Monitor a target PDCCH about the secondary cell, wherein the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

8. The method according to any one of claims 1 to 7, wherein: The method further comprises: When the secondary cell is in an activated state and the first condition is met, the terminal performs at least one of the following: not monitoring the PDCCH related to the secondary cell; Not triggering a power headroom report PHR report on the secondary cell; At least one of activation and restart of the preconfigured resource is not performed; The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

9. The method according to any one of claims 1 to 8, wherein: The secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell; or, If the second condition is met, the second timer is not started, wherein the second timer is started or turned off according to data scheduling on the secondary cell, and the second condition includes: at least one of the transmission of the positioning reference signal only on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal; or, When the second condition is met, the secondary cell is not associated with the second timer.

10. The method according to any one of claims 1 to 9, wherein: The method further comprises: In a case where the radio resource control RRC release message carries the configuration information of the secondary cell, the terminal performs at least one of the following: transmitting the positioning reference signal on the secondary cell; Not performing small data packet transmission (SDT) on the secondary cell; Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell; Not transmitting the PRACH on the secondary cell; No reference signal is measured on the secondary cell.

11. The method according to any one of claims 1 to 10, wherein: When the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following: ScellDeactivationTimer is infinite or equal to the time advance timer TA timer; ScellDeactivationTimer does not start or is invalid.

12. The method according to any one of claims 1 to 11, wherein: The method further comprises: When the secondary cell is in a deactivated state, the terminal does not transmit the positioning reference signal on the secondary cell.

13. The method according to any one of claims 1 to 12, wherein: The positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following conditions: Use the same RF link and antenna; have the same subcarrier spacing; have the same time slot and symbol; have the same cyclic prefix; have the same cyclic shift; have the same period; Have the same positioning reference signal type.

14. The method according to any one of claims 1 to 13, wherein: The method further comprises: Before performing the positioning reference signal measurement, the terminal reports target capability information to a network side device; The target capability information includes at least one of the following: Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal; The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

15. The method according to any one of claims 1 to 14, wherein: The method further comprises: In a case where a transmission time of a target object scheduled or configured for transmission on M cells among the N cells overlaps with a transmission time of the positioning reference signal for aggregate transmission, and a priority of the target object is higher than a priority of the positioning reference signal, the terminal performs at least one of the following: Not transmitting the positioning reference signal on at least one cell among the M cells; Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells among the N cells; The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

16. The method according to claim 15, wherein: The priority of the terminal in aggregately transmitting positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells.

17. The method according to claim 15 or 16, wherein: When K positioning reference signals belong to a positioning reference signal set, and the positioning reference signal set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is an aggregated transmission, where K is greater than zero.

18. A positioning reference signal transmission method, wherein: The method comprises: The network side device determines N cells for aggregate transmission of positioning reference signals; The network side device configures the N cells to the terminal; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and no physical uplink sharing is configured. At least one of the shared channel PUSCH and the physical uplink control channel PUCCH; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

19. The method according to claim 18, wherein: The method further comprises: The network side device receives the target capability information reported by the terminal; The network side device determines N cells for positioning reference signal aggregation transmission, including: The network side device determines, according to the target capability information, N cells for positioning reference signal aggregate transmission; The target capability information includes at least one of the following: Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal; The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

20. A positioning reference signal transmission device, wherein: Applied to a terminal, the device comprises: A transmission module, used for aggregating and transmitting positioning reference signals on N cells; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

21. A positioning reference signal transmission device, wherein: Applied to a network side device, the device comprises: A first determination module, used to determine N cells for positioning reference signal aggregate transmission; A configuration module, used to configure the N cells to the terminal; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

22. A communication device, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the method implements the steps of the positioning reference signal transmission method as described in any one of claims 1 to 17, or implements the steps of the positioning reference signal transmission method as described in any one of claims 18 to 19.

23. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the positioning reference signal transmission method as described in any one of claims 1 to 17, or implements the steps of the positioning reference signal transmission method as described in any one of claims 18 to 19.

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